cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A124302 Number of set partitions with at most 3 blocks; number of Dyck paths of height at most 4; dimension of space of symmetric polynomials in 3 noncommuting variables.

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 14
5 41
6 122
7 365
8 1094
9 3281
10 9842
11 29525
12 88574
13 265721
14 797162
15 2391485
16 7174454
17 21523361
18 64570082
19 193710245
20 581130734
21 1743392201
22 5230176602
23 15690529805
24 47071589414
25 141214768241
26 423644304722
27 1270932914165
28 3812798742494
29 11438396227481

List of values

[1, 1, 2, 5, 14, 41, 122, 365, 1094, 3281, 9842, 29525, 88574, 265721, 797162, 2391485, 7174454, 21523361, 64570082, 193710245, 581130734, 1743392201, 5230176602, 15690529805, 47071589414, 141214768241, 423644304722, 1270932914165, 3812798742494, 11438396227481]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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